Heartbeats shouldn’t be too fast. If a team is constantly updating their product, then customers start tuning out. They don’t have time to learn how the product works—certainly not to master it—before suddenly it’s new again. Look at Google. Its heartbeat is erratic, unpredictable. It works for them—mostly, sometimes—but it could work so much better. Google arguably only has one big external heartbeat each year at Google I/O—and most teams don’t bother aligning with it.